The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 1989
Filed:
Mar. 10, 1986
Applicant:
Inventors:
James S Andrews, Westminster, CO (US);
Daniel Cooper, Parker, CO (US);
Assignee:
Hierath & Andrews Corp., Wheat Ridge, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09F / ;
U.S. Cl.
CPC ...
364567 ; 177-1 ; 177 2519 ; 222196 ; 222200 ; 222 52 ; 198771 ;
Abstract
A method and apparatus for rapidly and accurately dispensing measured amounts of powdered material from a vibratory feeder with a shaker rod extending through an orifice at the discharge end of the feeder and which rod undergoes reciprocal movement in response to vibration of the feeder to regulate the advancement of the powdered material. Alternate forms of control algorithms are employed in association with a computer to determine the optimum rate of feed and drive level for a given powder and feeder arrangement to result in a specific final weight within an acceptable tolerance for each fill cycle.